- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/40 - Alloying of impurity materials, e.g. doping materials, electrode materials, with a semiconductor body
Patent holdings for IPC class H01L 21/40
Total number of patents in this class: 48
10-year publication summary
|
4
|
1
|
3
|
4
|
3
|
2
|
1
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 40717 |
7 |
| International Business Machines Corporation | 60224 |
3 |
| Micron Technology, Inc. | 25874 |
3 |
| Semiconductor Energy Laboratory Co., Ltd. | 11109 |
3 |
| Samsung Display Co., Ltd. | 32942 |
2 |
| GLOBALFOUNDRIES U.S. Inc. | 6437 |
2 |
| Samsung Electronics Co., Ltd. | 139551 |
1 |
| LG Display Co., Ltd. | 12932 |
1 |
| Merck Patent GmbH | 5856 |
1 |
| Intel Corporation | 46179 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4040 |
1 |
| Texas Instruments Incorporated | 19443 |
1 |
| Renesas Electronics Corporation | 6150 |
1 |
| Infineon Technologies AG | 8138 |
1 |
| Northrop Grumman Systems Corporation | 2933 |
1 |
| LG Innotek Co., Ltd. | 7272 |
1 |
| Lam Research Corporation | 5022 |
1 |
| Tsinghua University | 5719 |
1 |
| Agency for Science, Technology and Research | 3570 |
1 |
| Nichia Corporation | 3562 |
1 |
| Other owners | 14 |